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Concept Check

0/5

What is the primary purpose of a cleanup function in useEffect for data fetching?

To abort ongoing requests on unmount

To update state after fetching

To handle fetch errors

To abort ongoing requests on unmount

Why should the dependency array be used carefully in data fetching with useEffect?

To prevent infinite loops from state changes

To run effect only once

To fetch data on every render

To prevent infinite loops from state changes

How does useEffect handle asynchronous data fetching internally?

By allowing async functions inside it

By blocking the render process

By running synchronously

What risk arises from fetching data in useEffect without cleanup?

Potential memory leaks if component unmounts

Faster data loading times

Automatic error handling

In what scenario might useEffect for data fetching cause re-renders?

If no dependencies are specified

Only on component mount

When dependencies change after initial render

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